A typical serving of prunes (1 prune, pitted, 10 g) has about 23 calories. Per 100 g: 240 kcal, 2.2 g protein, 63.9 g carbs, 0.4 g fat. The same 100 g carries 7.1 g of fiber and 38.1 g of sugar. Most of the energy comes from carbohydrate.
| Serving | Weight | Calories |
|---|---|---|
| 1 prune, pitted | 10 g | 23 kcal |
| 1 cup, pitted | 174 g | 418 kcal |
| 100 g | 100 g | 240 kcal |
Dried plums, famous for fiber; each prune is about 23 calories. On the energy-density scale, 240 kcal per 100 g puts prunes at the moderate end. Fiber is the standout at 7.1 g per 100 g, which slows a portion down more than the calorie count suggests.

A typical serving (1 prune, pitted, 10 g) has about 23 calories, and 100 g has 240 kcal. Calories scale with weight, so double the portion means double the number.
There are 2.2 g of protein in 100 g of prunes, which works out to about 0.2 g per serving (1 prune). Treat it as an energy source rather than a protein source.
Sugar comes to 38.1 g per 100 g, so 1 prune (10 g) delivers roughly 4 g. That sugar is already counted inside the calorie figures on this page.
Every value on this page comes from USDA FoodData Central, entry 168162 (SR Legacy). Serving figures are converted from the per-100-g data, so rounding can shift a total by a calorie or two.
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Nutrition data: USDA FoodData Central, FDC ID 168162 (SR Legacy). Serving calories are computed from the per-100-g values.